P
AGE
2
44124-0798 <90-00024>
ORDERING INFORMATION
NOTE: This section lists the different options available for this product. To order any of the avail-
able options, contact Dantel Inside Sales through our toll-free number, 1-800-432-6835.
OPTION NUMBER
FEATURES
B11-44124-00
Data Channel Termination
GENERAL DESCRIPTION
T
he 44124 Data Channel Termination Module (DCTM) is
used to interface a metallic four-wire voice band/data chan-
nel line to a two-wire or four-wire modem when gain and equal-
ization control are required.
The 44124 DCTM provides:
♦
Data channel line conditioning that includes:
• Impedance matching
• Selectable gain and attenuation control
• Adjustable 309B-type post equalization
♦
A loopback capability that can be activated manually or by a
2713 Hz tone
♦
Front panel LED indicators
The 44124 DCTM is a plug-in printed circuit module that fits
into any Dantel 400-type or similar equipment housing. It
operates on -21 to -56 VDC input power.
APPLICATION INFORMATION
T
he 44124 is most often used in Dantel’s 460 Alarm and
Control System to interface mismatched data communication
lines between the 46033 E-System Adapter and a distant Alarm
Center. Refer to Fig. 1.